In English grammar, a nominative absolute is a free-standing (absolute) part of a sentence that describes the main subject and verb. It is usually at the beginning or end of the sentence, although it can also appear in the middle. Its parallel is the ablative absolute in Latin or the genitive absolute in Greek.
One way to identify a nominative absolute is to add a verb: one can always create a sentence out of a nominative absolute by adding one verb (generally a form of to be).
- Absolute Constructions from the American Heritage Book of English Usage (1996).